Precise area air floating platform made of porous material and ink-jet printer
By using a precision air flotation platform with porous materials and a porous structure design in both positive and negative pressure zones, the problems of complex structure and high cost of air flotation devices are solved, achieving stable suspension and smooth transportation of the substrate and reducing manufacturing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-07
- Publication Date
- 2026-03-31
AI Technical Summary
Existing air flotation devices are complex in structure and expensive, making it difficult to achieve micron-level suspension stability of substrates. This leads to scratches, deformation and bending problems on the substrates during transportation, especially large-size substrates which are prone to bulging.
The precision air flotation platform, made of porous material, achieves stable transport of substrates through the porous structure design of positive and negative pressure zones, combined with venting grooves and sealing rings.
The structure of the air flotation device has been simplified, the manufacturing cost has been reduced, and the substrate has been stably suspended and transported smoothly through a steady positive and negative pressure airflow, avoiding substrate deformation and bulging.
Smart Images
Figure CN224061979U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of display panel support technology, specifically a precision air-float platform and inkjet printer made of porous material. Background Technology
[0002] Currently, during the manufacturing and transportation of substrates (including glass substrates, flexible substrates, etc.), traditional contact-based transportation methods (such as roller drive) are prone to damage such as scratches, deformation, and localized stress concentration. Therefore, non-contact air-floating transportation methods are now widely used. Air-floating transportation uses air outlets to suspend the substrate in a suspended state during transportation.
[0003] However, the required substrate suspension height is at the micrometer level, placing high demands on the gas stability of the air flotation device. This is especially true for the substrate's working area, which requires high suspension stability. To meet the micrometer-level requirements of the substrate's working area, existing air flotation devices have complex structures, leading to high manufacturing costs. Furthermore, existing positive pressure airflow systems often use positive pressure holes to provide suspension force to the substrate. The airflow through these holes can easily cause thin or flexible substrates to bend, especially large substrates, and can also cause "bulges" in the middle of the substrate, making stable transport impossible.
[0004] Therefore, a precision air flotation platform and inkjet printer made of porous material are needed to solve the above problems. Utility Model Content
[0005] This application provides a precision air-float platform and inkjet printer made of porous material. The air-float platform has a simple structure and can be manufactured using common machining methods, resulting in low manufacturing costs. Furthermore, the positive pressure zone has a porous plate structure, and the positive pressure airflow is stable after passing through the positive pressure zone, enabling the substrate to be transported smoothly.
[0006] The first aspect of this application discloses a precision zone air flotation platform made of porous material, the precision zone air flotation platform including an air flotation plate; wherein, the air flotation plate is a porous plate; a plurality of air flotation blocks are evenly distributed on the air flotation plate, the air flotation blocks are positive pressure zones, and the negative pressure zone is located in the middle of the positive pressure zone.
[0007] In the above scheme, the air flotation plate has a simple structure; both the positive and negative pressure zones are porous, ensuring stable airflow in both directions and allowing for smooth substrate transport. A venting groove can be provided between two adjacent air flotation blocks, or it can be omitted. The venting groove is provided to allow the airflow between the air flotation platform and the substrate to be discharged quickly, serving as an auxiliary feature. That is, the venting groove can be used in conjunction with the structure of the negative pressure zone, or the air flotation platform may not require a venting groove.
[0008] In one possible implementation, a venting groove is provided between any two adjacent air flotation blocks; wherein the venting groove includes a first venting groove in a first direction and a second venting groove in a second direction, the groove spacing of the first venting groove is the same as the groove spacing of the second venting groove, the first direction is the transport direction of the substrate, and the second direction is the printing direction of the inkjet printer.
[0009] At this point, the spacing between the first and second pressure relief grooves can also be set differently; and the spacing can be adjusted according to the size of the substrate, the flight altitude of the substrate, and other requirements, so that the substrate can fly more smoothly. Having the same spacing between the two pressure relief grooves facilitates the manufacturing of the air-bearing plate; the spacing between the same type of pressure relief groove is often the same.
[0010] In one possible implementation, the precision zone air flotation platform includes an upper plate, the upper plate including a first edge region; the first edge region includes a first positive pressure groove, a first negative pressure hole, a first positive pressure hole, and a first negative pressure groove, wherein the first positive pressure hole is disposed at the bottom of the first positive pressure groove, and the first positive pressure groove provides positive pressure airflow to the positive pressure region located in the first edge region; the first negative pressure hole is disposed at the bottom of the first negative pressure groove, and the first negative pressure groove provides negative pressure airflow to the negative pressure region located in the first edge region; the first positive pressure groove is located on the upper surface or the lower surface of the upper plate, and the first negative pressure groove is located on the lower surface or the upper surface of the upper plate.
[0011] In the above scheme, the first edge area can be located on both sides of the air-floating platform in the second direction and can be controlled independently; in the second direction, it ensures smooth transportation of the substrate edge. The first positive pressure groove and the first negative pressure groove are arranged opposite to each other; when one is set on the upper surface of the upper plate, the other is set on the lower surface of the upper plate.
[0012] In one possible implementation, the upper surface of the upper plate includes a second edge region; the second edge region includes a second positive pressure groove, a second negative pressure hole, and a second negative pressure groove, wherein the second positive pressure groove has the second positive pressure hole at its bottom and provides positive pressure airflow to the positive pressure area located in the second edge region; the second negative pressure groove has the second negative pressure hole at its bottom and provides negative pressure airflow to the negative pressure area located in the second edge region; the second positive pressure groove is located on the upper or lower surface of the upper plate, and the second negative pressure groove is located on the lower or upper surface of the upper plate.
[0013] In the above scheme, the second edge region can be located on both sides of the air-bearing platform in the first direction and can be controlled independently; in the first direction, it ensures stable transport of the substrate edge. The airflow or "diffusion" in the edge region is faster. If the same positive pressure airflow as the central region is used, the edge region of the substrate will "sink"; therefore, this application provides separate airflow control for both the first and second edge regions, and the structures are also separate. Especially during inkjet printing, substrate stability is even more necessary. The second positive pressure groove and the second negative pressure groove are arranged opposite each other; when one is located on the upper surface of the upper layer plate, the other is located on the lower surface of the upper layer plate.
[0014] In one possible implementation, the upper surface of the upper plate includes a central region; the central region includes a third positive pressure groove, a third negative pressure hole, and a third negative pressure groove, wherein the third positive pressure hole is disposed at the bottom of the third positive pressure groove, and the second positive pressure groove provides positive pressure airflow to the positive pressure area located in the central region; the third negative pressure hole is disposed at the bottom of the third negative pressure groove, and the third negative pressure groove provides negative pressure airflow to the negative pressure area located in the central region; the third positive pressure groove is located on the upper or lower surface of the upper plate, and the third negative pressure groove is located on the lower or upper surface of the upper plate; the upper surface is the surface of the upper plate close to the air flotation plate, and the lower surface is the surface of the upper plate away from the air flotation plate.
[0015] In the above scheme, the third positive pressure groove and the third negative pressure groove are arranged opposite each other; when one is located on the upper surface of the upper layer plate, the other is located on the lower surface of the upper layer plate. This arrangement can maximize the use of the space of the layer plate and reduce the thickness of the layer plate; it not only makes machining easier but also saves production and manufacturing costs.
[0016] In one possible implementation, the positive pressure region has a first porosity, and the negative pressure region has a second porosity; wherein the second porosity is greater than or equal to the first porosity.
[0017] The above scheme discloses another arrangement for positive and negative pressure zones. When the porosity of the negative pressure zone is greater than that of the positive pressure zone, the negative pressure zone can better carry away the negative pressure airflow; it can quickly discharge the negative pressure airflow without increasing the air pressure of the negative pressure airflow. Two different porosities can be set on the porous plate, and it can be manufactured using two materials in one piece or in two separate processes; there is no limitation on this.
[0018] In one possible implementation, the negative pressure zone is provided with a circular groove; wherein the circular groove is a shallow groove structure, and the circular groove is located on the lower surface of the air flotation plate, the lower surface of the air flotation plate being the contact surface with the upper plate.
[0019] The above-described scheme discloses a negative pressure zone configuration with a circular groove. The circular groove not only facilitates greater "breathability" in the negative pressure zone, allowing for rapid discharge of negative pressure airflow without increasing its pressure, but also reduces the cross-flow of positive and negative pressure airflow within the perforated plate due to the thinner negative pressure zone. Furthermore, applying silicone sealant or similar material around the circular groove can further prevent cross-flow of positive and negative pressure airflow within the perforated plate.
[0020] In one possible implementation, the negative pressure zone is provided with a circular through hole.
[0021] In the above scheme, the negative pressure zone is set as a circular through hole, which makes it easier to discharge the negative pressure airflow.
[0022] In one possible implementation, the precision zone air flotation platform includes a lower plate; wherein the lower plate includes a plurality of positive pressure air inlets and a plurality of negative pressure air outlets, one of the positive pressure air inlets provides positive pressure airflow to one of the positive pressure outlets, and a negative pressure airflow flows out through one of the negative pressure outlets.
[0023] The above scheme describes the structure of the lower plate. The air flotation platform in this application may consist only of an air flotation plate, an upper plate, and a lower plate, with a simple structure and convenient processing.
[0024] In one possible implementation, the precision zone air flotation platform includes a sealing ring; wherein the sealing ring is disposed on the opening side of the negative pressure groove, and the negative pressure groove includes a first positive pressure groove, a second negative pressure groove, and a third negative pressure groove.
[0025] The above-described solution discloses that a sealing ring can be installed at the opening of the negative pressure groove; an annular groove can be installed at the opening of the negative pressure groove, and then a sealing ring can be placed in the annular groove. The sealing ring can be a rubber sealing ring or other sealing material. Alternatively, a sealing ring can be installed at the opening of the positive pressure hole. Installing sealing rings increases the airtightness of the upper and lower plates during installation.
[0026] A second aspect of this application discloses an inkjet printer, which includes a precision zone air flotation platform as described in any of the above claims.
[0027] The beneficial effects of this application include:
[0028] The air-bearing plate has a simple structure; both the positive and negative pressure zones are porous, ensuring stable airflow and allowing for smooth substrate transport. The spacing between the first and second pressure relief grooves can be different; and the groove spacing can be adjusted according to the substrate size, flight altitude, and other requirements to ensure more stable substrate flight. Having the same groove spacing for both types of pressure relief grooves facilitates the manufacturing of the air-bearing plate; the groove spacing for the same type of pressure relief groove is often identical.
[0029] The second edge region can be located on both sides of the air-bearing platform in the first direction and can be controlled independently; in the first direction, it ensures stable transport of the substrate edge. The airflow or "diffusion" in the edge region is faster; if the same positive pressure airflow as the central region is used, the edge region of the substrate will "sink"; therefore, this application provides separate airflow control for both the first and second edge regions, and the structures are also separate. Especially during inkjet printing, substrate stability is crucial.
[0030] The second positive pressure groove and the second negative pressure groove are arranged opposite each other. When one is set on the upper surface of the upper plate, the other is set on the lower surface of the upper plate. This arrangement can make full use of the space of the plate and reduce the thickness of the plate. It can not only make machining easier, but also save production and manufacturing costs.
[0031] When the porosity of the negative pressure zone is greater than that of the positive pressure zone, the negative pressure zone can better carry away the negative pressure airflow; it can quickly discharge the negative pressure airflow without increasing the air pressure of the negative pressure airflow.
[0032] The circular grooves not only allow for greater "breathability" in the negative pressure zone, enabling rapid discharge of negative pressure airflow without increasing its pressure, but also reduce the cross-flow of positive and negative pressure airflow within the perforated plate due to the thinner negative pressure zone. Furthermore, applying silicone sealant or similar materials around the circular grooves can further prevent cross-flow of positive and negative pressure airflow within the perforated plate.
[0033] Setting the negative pressure zone as a circular through-hole makes it easier to discharge negative pressure airflow;
[0034] A sealing ring can be installed at the opening of the negative pressure groove; alternatively, an annular groove can be created at the opening of the negative pressure groove, and a sealing ring can be placed in the annular groove. The sealing ring can be a rubber sealing ring or other sealing material. Alternatively, a sealing ring can be installed at the opening of the positive pressure hole. Installing sealing rings increases the airtightness of the upper and lower panels during installation. Attached Figure Description
[0035] Figure 1 This is a top view schematic diagram of a precision air-float platform made of porous material disclosed in this application specification;
[0036] Figure 2 This is a schematic diagram of the side structure of a precision air flotation platform made of porous material disclosed in this application.
[0037] Figure 3 This is a schematic diagram of the upper surface structure of the precision air flotation platform made of porous material disclosed in this application.
[0038] Figure 4This is a schematic diagram of the lower surface structure of the upper plate of a precision air flotation platform made of porous material disclosed in this application specification;
[0039] Figure 5 This is a schematic diagram of the lower layer plate structure of a precision air flotation platform made of porous material disclosed in this application specification;
[0040] Figure 6 This is a structural schematic diagram of the positive pressure zone and negative pressure zone in an air flotation block disclosed in this application.
[0041] Figure 7 This is a schematic diagram of the positive pressure zone and negative pressure zone in another type of air flotation block disclosed in this application.
[0042] Figure 8 This is a structural schematic diagram of the positive pressure zone and negative pressure zone in another type of air flotation plate disclosed in this application.
[0043] The above-mentioned components include: air flotation plate 100, positive pressure zone 101, negative pressure zone 102, and venting groove 103; upper plate 200, first positive pressure groove 211, first negative pressure hole 212, first positive pressure hole 213, first negative pressure groove 214, second positive pressure groove 221, second negative pressure hole 222, second positive pressure hole 223, second negative pressure groove 224, third positive pressure groove 231, third negative pressure hole 232, third positive pressure hole 233, and third negative pressure groove 234; lower plate 300, first positive pressure air inlet 311, first negative pressure air outlet 312, second positive pressure air inlet 321, second negative pressure air outlet 322, third positive pressure air inlet 331, and third negative pressure air outlet 332; sealing ring 400; first negative pressure zone 102a and second negative pressure zone 102b. Detailed Implementation
[0044] To enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.
[0045] In the description of the embodiments of this application, the words "for example" or "for instance" are used to indicate examples, illustrations, or explanations. Any embodiment or design that is described as "for example" or "for instance" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design options. Rather, the use of the words "for example" or "for instance" is intended to present the relevant concepts in a specific manner.
[0046] The air flotation plate described in this specification has a porous structure, such as being made of porous ceramics, porous carbon, or porous metal. This specification does not limit this.
[0047] In this instruction manual, the first direction can be as follows: Figure 3 The X direction shown is the transport direction of the substrate; the second direction can be as follows: Figure 3 The Y direction shown is the printing direction of the inkjet printer.
[0048] This specification discloses a precision zone air flotation platform made of porous material, which includes an air flotation plate 100.
[0049] The air flotation plate 100 is a porous plate; multiple air flotation blocks are evenly distributed on the air flotation plate 100, the air flotation blocks form a positive pressure zone 101, and a negative pressure zone 102 is located in the middle of the positive pressure zone 101. For example... Figure 1 As shown, this is a basic distribution example of the positive pressure zone 101 in this specification; the negative pressure zone 102 is not shown in the figure, and the negative pressure zone is located in the middle of the positive pressure zone 101. Furthermore, Figure 1 and Figure 8 The number of positive and negative pressure zones shown is merely an example; other numbers may also be used (e.g., ...). Figure 3 and Figure 4 The corresponding number of positive and negative pressure zones); and when the number of positive and negative pressure zones is not... Figure 1 and Figure 8 The number of positive and negative pressure zones in the air-bearing plate is related to the distribution of the positive pressure zone on the air-bearing plate. Figure 1 and Figure 8 The distribution of positive pressure zones is not the same.
[0050] In this example, the air-float plate has a simple structure; both the positive and negative pressure zones are porous, ensuring stable airflow and allowing for smooth substrate transport. A venting groove can be provided between two adjacent air-float blocks, or it can be omitted. The venting groove is provided to allow airflow between the air-float platform and the substrate to be discharged quickly, serving as an auxiliary feature. That is, the venting groove can be used in conjunction with the structure of the negative pressure zone, or the air-float platform may not require a venting groove.
[0051] For ease of description, this manual uses... Figure 1 The illustration shown here, featuring a venting groove 103, is used as an example for explanation; however, there are no restrictions on whether the air flotation platform has a venting groove.
[0052] In one possible implementation, a venting groove 103 is provided between any two adjacent air flotation blocks. The venting groove 103 includes a first venting groove in a first direction and a second venting groove in a second direction. The groove spacing of the first venting groove is the same as that of the second venting groove. The first direction is the transport direction of the substrate, and the second direction is the printing direction of the inkjet printer.
[0053] At this point, the spacing between the first and second pressure relief grooves can also be set differently; and the spacing can be adjusted according to the size of the substrate, the flight altitude of the substrate, and other requirements to ensure more stable flight of the substrate. Having the same spacing between the two pressure relief grooves facilitates the manufacturing of the air-bearing plate; the spacing between the same type of pressure relief groove is often the same. The depth of the pressure relief grooves, etc., will not be further explained.
[0054] In addition, to reduce crosstalk between positive and negative pressure airflows in the above example, thin perforated plates are preferred.
[0055] The above describes the structure of the air flotation plate. The following section explains the structure of the upper layer plate in the air flotation platform. For example... Figure 2-4 As shown,
[0056] In one example, the precision zone air flotation platform includes an upper plate 200, which includes a first edge region. The first edge region includes a first positive pressure groove 211, a first negative pressure hole 212, a first positive pressure hole 213, and a first negative pressure groove 214. The first positive pressure groove 211 has a first positive pressure hole 213 at its bottom and provides positive pressure airflow to the positive pressure zone 101 located in the first edge region. The first negative pressure groove 214 has a first negative pressure hole 212 at its bottom and provides negative pressure airflow to the negative pressure zone 102 located in the first edge region. The first positive pressure groove 211 is located on the upper or lower surface of the upper plate 200, and the first negative pressure groove 214 is located on the lower or upper surface of the upper plate 200.
[0057] At this time, the first edge area can be located on both sides of the air-floating platform in the second direction and can be controlled independently; in the second direction, it ensures the smooth transport of the substrate edge.
[0058] Furthermore, a positive pressure groove (including a first positive pressure groove, a second positive pressure groove, and a third positive pressure groove) in this specification can also be configured as multiple positive pressure grooves, the multiple positive pressure grooves including positive pressure grooves in a first direction and simultaneously including positive pressure grooves in a second direction; a positive pressure groove is composed of at least one positive pressure groove in a first direction and at least one positive pressure groove in a second direction.
[0059] In one example, the upper surface of the upper plate 200 includes a second edge region; the second edge region includes a second positive pressure groove 221, a second negative pressure hole 222, a second positive pressure hole 223, and a second negative pressure groove 224, wherein the bottom of the second positive pressure groove 221 is provided with the second positive pressure hole 223, and the second positive pressure groove 221 provides positive pressure airflow to the positive pressure area 101 located in the second edge region; the bottom of the second negative pressure groove 224 is provided with the second negative pressure hole 222, and the second negative pressure groove 224 provides negative pressure airflow to the negative pressure area 102 located in the second edge region; the second positive pressure groove 221 is located on the upper or lower surface of the upper plate 200, and the second negative pressure groove 224 is located on the lower or upper surface of the upper plate 200.
[0060] At this point, the second edge region can be located on either side of the air-bearing platform in the first direction and can be controlled independently; in the first direction, it ensures stable transport of the substrate edge. The airflow or "diffusion" in the edge region is faster; if the same positive pressure airflow as the central region is used, the edge region of the substrate will "sink"; therefore, this application provides separate airflow control for both the first and second edge regions, and the structures are also separate. Especially during inkjet printing, substrate stability is crucial.
[0061] In one example, the upper surface of the upper plate 200 includes a central region; the central region includes a third positive pressure groove 231, a third negative pressure hole 232, a third positive pressure hole 233, and a third negative pressure groove 234, wherein the bottom of the third positive pressure groove 231 is provided with a third positive pressure hole 233, and the third positive pressure groove 231 provides positive pressure airflow to the positive pressure zone 101 located in the central region; the bottom of the third negative pressure groove 234 is provided with a third negative pressure hole 232, and the third negative pressure groove 234 provides negative pressure airflow to the negative pressure zone 102 located in the central region; the third positive pressure groove 231 is located on the upper or lower surface of the upper plate 200, and the third negative pressure groove 234 is located on the lower or upper surface of the upper plate 200; the upper surface is the surface of the upper plate 200 that is close to the air flotation plate 100, and the lower surface is the surface of the upper plate 200 that is far away from the air flotation plate 100.
[0062] At this point, the third positive pressure groove and the third negative pressure groove are arranged opposite each other; the aforementioned positive pressure grooves (first positive pressure groove and second positive pressure groove) and negative pressure grooves (first negative pressure groove and second negative pressure groove) are also arranged opposite each other, with one located on the upper surface of the upper layer plate and the other on the lower surface of the upper layer plate. This arrangement maximizes the use of the shelf space and reduces the thickness of the shelf plate; it not only simplifies machining but also saves on manufacturing costs.
[0063] Figures 3-4In the examples, the bottom of each positive pressure groove is shown as having a single positive pressure hole, but this is not a limitation. Multiple positive pressure holes can also be provided at the bottom of a single positive pressure groove, depending on actual needs. Furthermore, only two positive pressure grooves are shown in each edge region, but multiple positive pressure grooves can be provided in the edge regions as needed; for example, four positive pressure grooves can be provided in the first edge region; each positive pressure groove has one or more positive pressure holes at its bottom. Similarly, in the central region, Figure 3 The example only shows 16 positive pressure grooves, but it can also be set to 8 or 32 positive pressure grooves as needed, and there is no limitation on this; each positive pressure groove has one or more positive pressure holes at its bottom.
[0064] At the same time, there is no limit to the number of negative pressure holes set at the bottom of the negative pressure groove; such as Figure 4 As shown, a certain number of negative pressure holes are illustrated in the edge regions (including the first and second edge regions), but this is not a limitation. It should be noted that the number of negative pressure holes is the same as the number of negative pressure zones; there is no limitation on the number of negative pressure holes, which means there is no limitation on the number of negative pressure zones. Figure 1 , Figure 2 as well as Figure 8 The number of negative pressure zones in the example and Figure 4 The number of negative pressure holes in the examples is not the same; this is to illustrate that this application does not limit the number of negative pressure holes in the upper layer board.
[0065] also, Figure 4 The first edge region is illustrated with only one first negative pressure groove 214, but it can also be set to two or more; the second edge region is illustrated with one second negative pressure groove 224, but it can also be set to two or more; the central region is illustrated with one third negative pressure groove 234, but it can also be set to two or more. That is, this specification does not limit the number of negative pressure grooves in the edge region or the central region.
[0066] The following discussion covers several ways to set up negative pressure zones, which can be freely combined.
[0067] In one example, the positive pressure region 101 has a first porosity, and the negative pressure region 102 has a second porosity; wherein the second porosity is greater than or equal to the first porosity. Figure 6 As shown, Figure 6 Taking an air flotation block as an example, the negative pressure zone 102 is located in the positive pressure zone 101, and the porosity of the negative pressure zone is greater than or equal to the porosity of the positive pressure zone.
[0068] At this time, when the porosity of the negative pressure zone is greater than that of the positive pressure zone, the negative pressure zone can better carry away the negative pressure airflow; it can quickly discharge the negative pressure airflow without increasing the air pressure of the negative pressure airflow.
[0069] Furthermore, the porous plate can be configured with two different porosities, and can be manufactured using two materials in a single piece or in two separate processes; there are no limitations on this. Of course, the porosity of the positive pressure zone can also be the same as that of the negative pressure zone.
[0070] In one example, the negative pressure zone 102 is provided with a circular groove; wherein, the circular groove is a shallow groove structure, and the circular groove is located on the lower surface of the air flotation plate 100, the lower surface of the air flotation plate 100 being the contact surface with the upper plate 200. Figure 7 As shown, Figure 7 The diagram only shows the circular groove structure of the negative pressure zone in one air flotation block; the area around the first negative pressure zone 102a can be coated with adhesive such as glass glue to prevent cross-flow of positive and negative airflow, or it can be left uncoated.
[0071] In this example, the circular groove not only makes the negative pressure zone more "breathable," allowing the negative pressure airflow to be quickly discharged without increasing the air pressure of the negative pressure airflow, but also reduces the crossflow of positive and negative pressure airflow within the perforated plate due to the thinner negative pressure zone. Alternatively, silicone sealant or similar material can be applied around the circular groove to further prevent crossflow of positive and negative pressure airflow within the perforated plate.
[0072] In one example, the negative pressure zone 102 is provided with a circular through hole. For example... Figure 8 As shown in the figure, the second negative pressure zone 102b is a circular through hole.
[0073] At this point, setting the negative pressure zone as a circular through hole makes it easier to discharge negative pressure airflow.
[0074] It should be noted that the various structures of the negative pressure zone mentioned above can be freely combined, and there are no restrictions on the combination form; the negative pressure zone can have the same porosity as the positive pressure zone, and a thin plate can be used to reduce crosstalk between positive and negative pressure airflows; or, when the positive and negative pressure zones have the same porosity, a circular groove or a circular through hole can be set in the negative pressure zone; or, as discussed above, the porosity of the positive pressure zone can be larger than that of the positive pressure zone, or, on this basis, a circular groove or a circular through hole can be set in the negative pressure zone at the same time; free combination of various negative pressure zones is allowed, taking into account a variety of different air flotation transportation scenarios.
[0075] In one example, the precision zone air flotation platform includes a lower plate 300; wherein the lower plate 300 includes a plurality of positive pressure air inlets and a plurality of negative pressure air outlets, a positive pressure air inlet provides positive pressure airflow to a positive pressure outlet, and a negative pressure outlet allows negative pressure airflow to flow out through a negative pressure air outlet.
[0076] At this time, as Figure 5As shown, the positive pressure air inlet includes a first positive pressure air inlet 311, a second positive pressure air inlet 321, and a third positive pressure air inlet 331; the negative pressure air outlet includes a first negative pressure air outlet 312, a second negative pressure air outlet 322, and a third negative pressure air outlet 332; the positive pressure hole includes a first positive pressure hole 213, a second positive pressure hole 223, and a third positive pressure hole 233; and the negative pressure groove includes a first positive pressure groove 211, a second negative pressure groove 224, and a third negative pressure groove 234.
[0077] A first positive pressure inlet 311 provides positive pressure airflow to a first positive pressure inlet 213, a second positive pressure inlet 321 provides positive pressure airflow to a second positive pressure inlet 223, and a third positive pressure inlet 331 and a third positive pressure inlet 233 provide positive pressure airflow.
[0078] A first positive pressure groove 211 discharges negative pressure airflow through one or more first negative pressure air outlets 312, a second negative pressure groove 224 discharges negative pressure airflow through one or more second negative pressure air outlets 322, and a third negative pressure groove 234 discharges negative pressure airflow through one or more third negative pressure air outlets 332.
[0079] As shown above, the air flotation platform in this manual may consist of only an air flotation plate, an upper plate, and a lower plate, which has a simple structure and is easy to process.
[0080] Connections not disclosed in this specification may be made using conventional methods in the field or other methods; no further explanation will be provided.
[0081] In one example, the precision zone air flotation platform includes a sealing ring 400; wherein the sealing ring 400 is provided on the opening side of the negative pressure groove, and the negative pressure groove includes a first positive pressure groove 211, a second negative pressure groove 224 and a third negative pressure groove 234.
[0082] The above-described solution discloses that a sealing ring can be provided at the opening of the negative pressure groove; an annular groove can be provided at the opening of the negative pressure groove, and then a sealing ring can be placed in the annular groove. The sealing ring can be a rubber sealing ring or other sealing material. Alternatively, a sealing ring can be provided at the opening of the positive pressure hole. The sealing ring is provided to increase the airtightness of the upper and lower plates during installation. The sealing rings at the positive pressure holes are not shown in the attached drawings. The positive pressure holes include the aforementioned first positive pressure hole 213, second positive pressure hole 223, and third positive pressure hole 233.
[0083] The second aspect of this application discloses an inkjet printer, which includes a precision zone air flotation platform as described above.
[0084] In the description of this application, it should be understood that in the accompanying drawings, the positive direction of "X" represents the front, and correspondingly, the negative direction of "X" represents the rear; the positive direction of "Y" represents the right, and correspondingly, the negative direction of "Y" represents the left; the positive direction of "Z" represents the top, and correspondingly, the negative direction of "Z" represents the bottom. The terms "X", "Y", "Z", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Moreover, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.
[0085] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.
[0086] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.
[0087] The above are merely specific embodiments of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.
Claims
1. A precision zone air floating platform of porous material, characterized in that, The precision area air floating platform comprises an air floating plate; wherein The air floating plate is a porous plate; A plurality of air floating blocks are uniformly distributed on the air floating plate, the air floating block is a positive pressure area, and a negative pressure area is located in the middle of the positive pressure area.
2. The precision zone air bearing platform of claim 1, wherein, The precision area air floating platform comprises an upper plate, the upper plate comprises a first edge area; the first edge area comprises a first positive pressure groove, a first negative pressure hole, a first positive pressure hole and a first negative pressure groove, wherein The bottom of the first positive pressure groove is provided with the first positive pressure hole, and the first positive pressure groove provides positive pressure airflow for the positive pressure area located in the first edge area; The bottom of the first negative pressure groove is provided with the first negative pressure hole, and the first negative pressure groove provides negative pressure airflow for the negative pressure area located in the first edge area; The first positive pressure groove is located on the upper surface or the lower surface of the upper plate, and the first negative pressure groove is located on the lower surface or the upper surface of the upper plate.
3. The precision zone air bearing platform of claim 2, wherein, The upper surface of the upper plate comprises a second edge area; the second edge area comprises a second positive pressure groove, a second negative pressure hole, a second positive pressure hole and a second negative pressure groove, wherein The bottom of the second positive pressure groove is provided with the second positive pressure hole, and the second positive pressure groove provides positive pressure airflow for the positive pressure area located in the second edge area; The bottom of the second negative pressure groove is provided with the second negative pressure hole, and the second negative pressure groove provides negative pressure airflow for the negative pressure area located in the second edge area; The second positive pressure groove is located on the upper surface or the lower surface of the upper plate, and the second negative pressure groove is located on the lower surface or the upper surface of the upper plate.
4. The precision zone air floatation platform according to any one of claims 1-3, wherein, The upper surface of the upper plate comprises a center area; the center area comprises a third positive pressure groove, a third negative pressure hole, a third positive pressure hole and a third negative pressure groove, wherein The bottom of the third positive pressure groove is provided with the third positive pressure hole, and the third positive pressure groove provides positive pressure airflow for the positive pressure area located in the center area; The bottom of the third negative pressure groove is provided with the third negative pressure hole, and the third negative pressure groove provides negative pressure airflow for the negative pressure area located in the center area; The third positive pressure groove is located on the upper surface or the lower surface of the upper plate, and the third negative pressure groove is located on the lower surface or the upper surface of the upper plate; the upper surface is the surface of the upper plate close to the air floating plate, and the lower surface is the surface of the upper plate away from the air floating plate.
5. The precision zone air floatation platform of claim 1, wherein, The positive pressure area has a first porosity, and the negative pressure area has a second porosity; wherein The second porosity is greater than or equal to the first porosity.
6. The precision zone air floatation platform of claim 1 or 5, wherein, The negative pressure area is provided with a circular groove; wherein The circular groove is a shallow groove structure, and the circular groove is located on the lower surface of the air floating plate, which is the surface of the air floating plate in contact with the upper plate.
7. The precision zone air floatation platform of claim 1 or 5, wherein, The negative pressure area is provided with a circular through hole.
8. The precision zone air floatation platform of claim 4, wherein, The precision area air floating platform comprises a lower plate; wherein The lower plate comprises a plurality of positive pressure air inlet holes and a plurality of negative pressure air outlet holes, one positive pressure air inlet hole provides positive pressure airflow for one positive pressure hole, and one negative pressure groove flows out negative pressure airflow through one negative pressure air outlet hole.
9. The precision zone air floatation platform of claim 1, wherein, A gas leakage groove is arranged between any two adjacent air floating blocks; wherein The air release groove comprises a first air release groove in a first direction and a second air release groove in a second direction, a groove pitch of the first air release groove is the same as a groove pitch of the second air release groove, the first direction is a conveying direction of the substrate, and the second direction is a printing direction of the inkjet printer.
10. An inkjet printer characterized by comprising: The inkjet printer comprises the precision area air floating platform as claimed in any one of claims 1-9.